From Al2O3-supported Ni(II)–ethylenediamine complexes to CO hydrogenation catalysts: Characterization of the surface sites and catalytic properties
| Autor: | Michel Che, Jean-Marc Giraudon, Eric Marceau, Fabien Négrier, Axel Löfberg, Lucien Leclercq |
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| Přispěvatelé: | Laboratoire de Réactivité de Surface (LRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille, Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2009 |
| Předmět: |
inorganic chemicals
010405 organic chemistry Process Chemistry and Technology Aluminate Inorganic chemistry chemistry.chemical_element Ethylenediamine [CHIM.CATA]Chemical Sciences/Catalysis 010402 general chemistry Heterogeneous catalysis 01 natural sciences Catalysis 0104 chemical sciences 3. Good health chemistry.chemical_compound Nickel chemistry Transition metal Carbon ComputingMilieux_MISCELLANEOUS Carbon monoxide |
| Zdroj: | Applied Catalysis A : General Applied Catalysis A : General, Elsevier, 2009, 362, pp.34-39. ⟨10.1016/j.apcata.2009.04.029⟩ Applied Catalysis A : General, 2009, 362, pp.34-39. ⟨10.1016/j.apcata.2009.04.029⟩ |
| ISSN: | 0926-860X |
| DOI: | 10.1016/j.apcata.2009.04.029 |
| Popis: | Ni (15 wt%)/Al 2 O 3 catalysts prepared by decomposition of supported Ni(II)–ethylenediamine complexes in inert atmosphere, followed by post-treatment in hydrogen, are able to catalyze carbon monoxide hydrogenation at temperatures lower than for a catalyst prepared from nickel nitrate and containing a fraction of surface nickel aluminate. Unlike the latter, the catalyst prepared from Ni(II)–en complexes exhibits mostly surface metallic sites and is more stable under reaction despite the absence of nickel aluminate. Deactivation occurs during the reaction, probably by carbon deposition, but less strongly than for an ex-nickel nitrate catalyst. |
| Databáze: | OpenAIRE |
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